Complete the indicated task to unlock the corresponding character.

Boris Becker: Defeat Boris Becker at the end of Arcade mode under the Easy or Hard AI difficulty setting. Note: You may need to win all tournaments without losing a point.
Duke: Win the King Of Players Tournaments then defeat Duke.
King: Win the King of Players tournament two times then defeat King.
Stefan Edberg: Complete Arcade mode in doubles and defeat Stefan Edberg and Boris Becker at the end.
Tim Henman: Complete all Academy Challenges under the Beginner and Advanced difficulty.